OBJECTIVES: Procalcitonin (PCT) and interleukin-6 (IL-6) are established markers of tissue inflammation and injury. The aim of the present study was to investigate the possible correlation of PCT and IL-6 with liver metastasis. DESIGN AND METHODS: The study consisted of fifteen healthy controls (group A), twenty-one patients with solid tumors without metastases (group B), eleven patients with liver metastasis only (group C) and eleven patients with generalized metastatic disease (group D). RESULTS: Serum PCT levels were significantly increased in group D compared to groups A (p<0.001) and B (p=0.004), but no difference was observed in PCT levels between groups C and B or C and D. IL-6 serum levels were markedly elevated in group C compared to group A (p<0.001) or to groups B (p<0.001) and D (p=0.02). A positive correlation was observed between PCT and IL-6 serum levels (r=0.357, p=0.019). CONCLUSIONS: PCT levels are related to disease stage in cancer patients, whereas IL-6 concentration seems to be a more specific marker of liver metastasis.
OBJECTIVES: Procalcitonin (PCT) and interleukin-6 (IL-6) are established markers of tissue inflammation and injury. The aim of the present study was to investigate the possible correlation of PCT and IL-6 with liver metastasis. DESIGN AND METHODS: The study consisted of fifteen healthy controls (group A), twenty-one patients with solid tumors without metastases (group B), eleven patients with liver metastasis only (group C) and eleven patients with generalized metastatic disease (group D). RESULTS: Serum PCT levels were significantly increased in group D compared to groups A (p<0.001) and B (p=0.004), but no difference was observed in PCT levels between groups C and B or C and D. IL-6 serum levels were markedly elevated in group C compared to group A (p<0.001) or to groups B (p<0.001) and D (p=0.02). A positive correlation was observed between PCT and IL-6 serum levels (r=0.357, p=0.019). CONCLUSIONS: PCT levels are related to disease stage in cancerpatients, whereas IL-6 concentration seems to be a more specific marker of liver metastasis.
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